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5-5. Installation of model 61/62 and 71/72
Connect the detector flange to a process flange. Tighten the bolts uniformly. The center of the
flange represents the zero point of the liquid level. (See Fig. 5-5.) If the zero point is raised, the
head increases by a corresponding amount.
(Flush type)
(Extended type)
Fig. 5-4. Connection to process vessel
Note) No flange gasket accompany the transmitters.
Gasket should be prepared by the customer. When using a semi-metallic or rubber gaskets, use a
gasket of a shape such that the gasket do not contact the detector diaphragms. (95mm dia.)
5-6. Installation of remote-sealed diaphragm type meter body
This type of meter body can be fixed to a pipe stanchion in the same manner as the regular
type of meter body. For connection to the process, proceed as follows:
(1) Connect the tapping flange to the process flange with the bolts and gasket. Evenly tighten
the bolts to prevent leakage. Lay the capillary tube so that it is not subjected to much
temperature change and fix it so that it does not move.
It is recommended to install the transmitter at a location lower than the flange.
(2) If a zero point shift has been caused by the head pressure of the seal liquid due to the
difference in height between the center of the flange and the center of the pressure
receiver, adjust zero by means of the ZERO control (or ELEVATION or SUPPRESSION
control). The specific-gravity of the seal liquid is 0.935 at 20°C (For temperature
compensation, use a factor of 0.008/10°C).
(3) For installation of the button diaphragm, refer to its dimension drawing.
When the installed button diaphragm requires to be removed, set the collar (available as
an option) to the groove at the rear end of the element (capillary tube side) and retract the
screw.
